Can-opener.



No. 723,609. PATENTBD MAR. 24, 1903 N. KALISGHER.

CAN OPENER.

APPLIOATIOH FILED MAY 10; 1902.

no MODEL.

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NITED STATE PATENT Fries.

NATHAN KALISOHER, OF CLEVELAND, OHIO.

CAN-OPENER.

SPECIFICATION forming part of Letters Patent N 0. 723,609, dated March24, 1903.

Application filed ay 902. Serial No. 106,793. (No model.)

have invented certain new and useful Im-' provements in Can-Openers, ofwhich I hereby declare the following to be a full, clear, and exactdescription, such as Will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in can-openers; and the objects ofthe invention are to provide a double-bladed cutter which will not bendthe tin, but will make a clean incision as the tool is forced forward,which cannot slip or be thrown out of the tin by the pressure employedin the cutting, and which will instantly grip the tin as soon as thetool is inserted.

My invention consists in the cutting-blades, one of which is providedwith a handle and the other with a bearingor fulcrum plate, with thedetails of construction and combination and arrangement of the variousparts, as hereinafter described, shown in the accompanying drawings, andspecifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of thedevice, the line of the top of the can being shown in dotted line. Fig.2 is a plan view thereof. Fig. 3 is an end view of the same, showing thecutting edges; and Fig. 4 is a plan view of the upper blade. Fig. 5shows a side view of the device with the blades opened to show theinitial gripping edges.

In the views, 1 is the lower blade, pivoted at 2 above the line of thetin to the upper blade 3. The upper blade is provided with the sharpcutting edge 4 and also with the lateral extensions 5 and 6. Theextension 5 is turned to the right and is near the front of the bladeand prevents the tool from being inserted too far into the tin. Theextension 6 is integral with the rear extremity 6, which rests upon thetin and forms a fulcrum-plate upon which the lower blade, which isprovided with an upwardly-curved handle 7, works. This extension ispreferablyturned to the left underneath the handle, so as to constantlyengage the surface of the can,

since with small cans it might extend over the edge thereof if itextended to the right. A coiled spring 8 serves to keep the bladesextended for use, and stop-pins 9 andlO serve to retain the spring. Asmall stop 11 prevents the blades from opening so far as to release thespring from the pins; The lower blade terminates in a sharp edge orpoint 12. This point extends somewhat in advance of the lower blade bothfor ready insertion in the tin and also to run inadvance of the upperblade underneath the tin and prevent the lower blade from lifting up andout of the tin as the pressure is brought to bearon the long handle.This is a very desirable feature, since with the single-bladedcan-openers now in use the lower blade often slips out of the tin andthe hand is badly torn on the rough edge of the tin.

This device is most conveniently made of a good quality of sheet-steelthat can be tempered and can be ground to a sharp edge.

The upper edge of the handle is seen bent over for convenience and anopening made therein to receive and protect the fingers, and the lateralextensions can be bent easily from the plate forming the upper blade.The stop-pins can also be formed of integral portions of the sheetmetal.

In Fig. 5 is seen the curved inner edges of the blades, the upper oneacting to seize the tin when it is pressed between the curved surfacesand give a strong initial grip and prevent slipping.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In a can-opener, the combination with a sheet-metal upper bladeprovided with right and left lateral extensions, one in front and theother in the rear, of a sheet-metal lower blade pivoted thereto abovethe division-line of the blades, and provided with an upwardlycurvedhandle and a spring between said handle and the rear extension of thelower blade.

2. In a can-opener, an upper blade, a rear extension and lateral plateintegral therewith, a lateral stop-plate upon the opposite side of theblade, a lower blade pivoted thereto above the meeting-line of theblades, and an upwardly-curved handle for said blade.

3. In a can-opener, an upper blade, ashort IO blade and a curved cuttinginner edge, and.

an upwardly-curved handle for said lower blade, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

NATHAN KALlSOI-IER.

Witnesses:

O. H. OLDs, WM. M. MONROE.

